Plow.



No. 759,918. PATENTED MAY 17, 1904.

J. ROAGH & J. JACKSON PLOW. APPLroATIoN Hmm SEM'. 9, 190s. No uonnr..

E] u vento zd.'

UNITED STATES Patented May i?, 1904.

PATENT OEEICE.

PLOW.

SPECIFICATION forming' part of Letters Patent N0. 759,918, dated. May17, 1904.

Application filed September 9, 1908. Serial No. 172,457. (No model.)

To all who/it it may con/cern:

Beit known that we, JOHN RoAoH and J AMES JACKSON, citizens of theUnited States, residing' at Assumption, in the county of Christian andState of Illinois, have invented certain new and useful Improvements inFlows, of which the following is a specification, reference being hadtherein to the accompanying drawings.

This invention relates to certain improvements in plows, and has for itsobject the provision of means, preferably associated with the moldboardof a plow, designed to greatly facilitate the pulverization of the soil,as well as to assist the movement of the plow through the ground beingoperated upon.

With the above-named object in view the invention comprehends a plowprovided with a series of rotatable cutters or disks mounted upon themoldboard thereof so as to project outwardly beyond the surface of themoldboard and instrumentalities for effecting an. adjustment of saiddisks or cutters to regulate the extent of their protrusion.

The novel details in the construction and arrangement of the severalparts of the plow will be apparent from the detail descriptionhereinafter,when read in connection with the accompanying drawings,forming a part hereof, and wherein a convenient embodiment of theinvention is illustrated.

In the drawings, Figure l is a side elevation of the plow. Fig. 2 is atransverse sectional view, and Fig. 3 is a detail edge view.

Referring more specifically to the drawings, A designates a standard ofany usual or preferred type, and B the plow carried thereby, being theplowshare, and L the moldboard. Near the forward edge of the moldboardadjacent to its line of juncture with the plowshare we provide atransversely-disposed series of slots c, the number of said slots beingwholly immaterial and dependent upon the size of the plow or the work tobe done thereby. Adapted to protrude through the slots just mentioned,one in each slot, are a series of rotary disks C, the saine beingloosely mounted upon a shaft I), whereby the disks or cutters, owing totheir frictional engagement with the soil, will rotate, and therebylessen the resistance to the movement of the plow through the ground, aswell as effectually cut up or pulverize the soil displaced by the plow.In order torotatably support the disks or cutters C and to adjust theprotrusion of the same through the slots c, any conven ient or preferredmeans may be employed, that shown being simply for the purpose ofillustrating the idea involved. As shown, the shaft l), which carriesthe disks, is supported at its ends in perforated ears or brackets l d',carried, respectively, by the standard A and the moldboard, said earsbeing cast with their supporting members or otherwise secured thereto.Each ear has a series of apertures e, the corresponding apertures ofboth ears being in alinement, whereby the shaft l) may be adj ustedforwardly or rearwardly, as found expedient under particular conditions,and the adjustment of the disks or cutters C thereby effected, the shaftbeing held in position by nuts E or other devices engaging the endsthereof.

Slight changes in the construction herein disclosed may obviously bemade without in the least departing from the spirit of the invention.

Having thus described the invention, what is claimed as new, and desiredto be secured by Letters Patent, is-u l. In a plow, the combination of amold board, having a slot therein, a rotatable disk projecting throughsaid slot, and means for adjusting the extent of protrusion of said diskthrough said slot.

Q. In a plow, the combination of a moldboard, having slots therein,rotatable disks projecting through said slots, and means for adjustingthe extent of protrusion of said disks through said slots.

3. In a plow, the combination of a moldboard, having slots therein,rotatable disks projecting through said slots, and means forsimultaneously adjusting the extent of protrusion of said disks throughsaid slots.

In testimony whereof we afiix our signatures in presence of twowitnesses.

JOHN ROACH. JAMES JACKSON.

Witnesses:

F. R. CrooDE, E. S. PARKS.

